如何使用多个标记创建单个dlm策略

Question

尝试创建一个DLM (数据生命周期管理)策略，每12小时拍摄一次ebs快照。AWS允许指定多个目标标记，以便将多个实例组合成一个策略。

试图使用terraform，https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/dlm_lifecycle_policy#target_tags创建相同的

target_tags似乎不需要多个映射值-

    target_tags = {
      Name = "g1n1",
      Name = "g1n2"
    }

Terraform计划从列表中获取最后一个地图值-

  # aws_dlm_lifecycle_policy.example has changed
  ~ resource "aws_dlm_lifecycle_policy" "example" {
        id                 = "policy-0719fc4b498671592"
        tags               = {}
        # (5 unchanged attributes hidden)

      ~ policy_details {
          ~ target_tags    = {
              ~ "Name" = "g1n1" -> "g1n2"
            }
            # (1 unchanged attribute hidden)

            # (1 unchanged block hidden)
        }
    }

为了克服这个问题，我为每个实例创建了2个策略，但是有任何方法可以为多个实例创建单个策略吗？

resource "aws_dlm_lifecycle_policy" "DLM_g1n1" {
    description = "DLM_g1n1"
    execution_role_arn = "AWSDataLifecycleManagerDefaultRole"
    policy_details {
      resource_types = ["INSTANCE"]
      schedule {
        name = "snapshot-every12hours"
        create_rule {
          interval      = 12
          interval_unit = "HOURS"
          times         = ["04:30"]
        }         
      retain_rule { count = 28 }
      copy_tags = false
    }
    target_tags = {
      Name = "g1n1"
    }
   }
}
resource "aws_dlm_lifecycle_policy" "DLM_g1n2" {
    description = "DLM_g1n2"
    execution_role_arn = "AWSDataLifecycleManagerDefaultRole"
    policy_details {
      resource_types = ["INSTANCE"]
      schedule {
        name = "cedcas-snapshot-every12hours"
        create_rule {
          interval      = 12
          interval_unit = "HOURS"
          times         = ["04:30"]
        }         
      retain_rule { count = 28 }
      copy_tags = false
    }
    target_tags = {
      Name = "g1n2"
    }
   }
}

Answer 1

在TF中似乎不可能。但是，与创建完全独立的aws_dlm_lifecycle_policy不同，您可以使用count或for_each

variable "tags" {
    default = [{Name = "g1n1"}, {Name = "g1n2"}]
}

resource "aws_dlm_lifecycle_policy" "DLM_g1" {

    count = length(var.tags)

    description = "DLM_g1n${count.index}"
    execution_role_arn = "AWSDataLifecycleManagerDefaultRole"
    policy_details {
      resource_types = ["INSTANCE"]
      schedule {
        name = "snapshot-every12hours"
        create_rule {
          interval      = 12
          interval_unit = "HOURS"
          times         = ["04:30"]
        }         
      retain_rule { count = 28 }
      copy_tags = false
    }
    target_tags = var.tags[count.index]
   }
}